The Diagrammatic Coaction and Cuts of the Double Box

Understand

The diagrammatic coaction encodes the analytic structure of Feynman integrals by mapping any given Feynman diagram into a tensor product of diagrams defined by contractions and cuts of the original diagram.

• Feynman integrals evaluate to generalized hypergeometric functions in dimensional regularization.
• Establishing the coaction on this type of functions has helped formulating and checking the diagrammatic coaction of certain two-loop integrals.
• In this talk we study its application on the fully massless double box diagram.